HTablePool (Apache HBase 1.1.7 API)

java.lang.Object
- org.apache.hadoop.hbase.client.HTablePool

All Implemented Interfaces:

Closeable, AutoCloseable

Deprecated.
as of 0.98.1. See HConnection.getTable(String).
```
@InterfaceAudience.Private
@Deprecated
public class HTablePool
extends Object
implements Closeable
```
A simple pool of HTable instances. Each HTablePool acts as a pool for all tables. To use, instantiate an HTablePool and use getTable(String) to get an HTable from the pool. This method is not needed anymore, clients should call HTableInterface.close() rather than returning the tables to the pool Once you are done with it, close your instance of HTableInterface by calling Table.close() rather than returning the tables to the pool with (deprecated) putTable(HTableInterface).
A pool can be created with a maxSize which defines the most HTable references that will ever be retained for each table. Otherwise the default is Integer.MAX_VALUE.
Pool will manage its own connections to the cluster. See HConnectionManager.

Constructor Summary

Constructors
Constructor and Description
`HTablePool()` Deprecated. Default Constructor.
`HTablePool(org.apache.hadoop.conf.Configuration config, int maxSize)` Deprecated. Constructor to set maximum versions and use the specified configuration.
`HTablePool(org.apache.hadoop.conf.Configuration config, int maxSize, HTableInterfaceFactory tableFactory)` Deprecated. Constructor to set maximum versions and use the specified configuration and table factory.
`HTablePool(org.apache.hadoop.conf.Configuration config, int maxSize, HTableInterfaceFactory tableFactory, PoolMap.PoolType poolType)` Deprecated. Constructor to set maximum versions and use the specified configuration, table factory and pool type.
`HTablePool(org.apache.hadoop.conf.Configuration config, int maxSize, PoolMap.PoolType poolType)` Deprecated. Constructor to set maximum versions and use the specified configuration and pool type.

Method Summary

Methods
Modifier and Type	Method and Description
`void`	`close()` Deprecated. Closes all the HTable instances , belonging to all tables in the table pool.
`void`	`closeTablePool(byte[] tableName)` Deprecated. See `closeTablePool(String)`.
`void`	`closeTablePool(String tableName)` Deprecated. Closes all the HTable instances , belonging to the given table, in the table pool.
`protected HTableInterface`	`createHTable(String tableName)` Deprecated.
`int`	`getCurrentPoolSize(String tableName)` Deprecated.
`HTableInterface`	`getTable(byte[] tableName)` Deprecated. Get a reference to the specified table from the pool.
`HTableInterface`	`getTable(String tableName)` Deprecated. Get a reference to the specified table from the pool.
`void`	`putTable(HTableInterface table)` Deprecated.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - HTablePool
```
public HTablePool()
```
    Deprecated.
    
    Default Constructor. Default HBaseConfiguration and no limit on pool size.
  - HTablePool
```
public HTablePool(org.apache.hadoop.conf.Configuration config,
          int maxSize)
```
    Deprecated.
    
    Constructor to set maximum versions and use the specified configuration.
    
    Parameters:
    config - configuration
    maxSize - maximum number of references to keep for each table
  - HTablePool
```
public HTablePool(org.apache.hadoop.conf.Configuration config,
          int maxSize,
          HTableInterfaceFactory tableFactory)
```
    Deprecated.
    
    Constructor to set maximum versions and use the specified configuration and table factory.
    
    Parameters:
    config - configuration
    maxSize - maximum number of references to keep for each table
    tableFactory - table factory
  - HTablePool
```
public HTablePool(org.apache.hadoop.conf.Configuration config,
          int maxSize,
          PoolMap.PoolType poolType)
```
    Deprecated.
    
    Constructor to set maximum versions and use the specified configuration and pool type.
    
    Parameters:
    config - configuration
    maxSize - maximum number of references to keep for each table
    poolType - pool type which is one of PoolMap.PoolType.Reusable or PoolMap.PoolType.ThreadLocal
  - HTablePool
```
public HTablePool(org.apache.hadoop.conf.Configuration config,
          int maxSize,
          HTableInterfaceFactory tableFactory,
          PoolMap.PoolType poolType)
```
    Deprecated.
    
    Constructor to set maximum versions and use the specified configuration, table factory and pool type. The HTablePool supports the PoolMap.PoolType.Reusable and PoolMap.PoolType.ThreadLocal. If the pool type is null or not one of those two values, then it will default to PoolMap.PoolType.Reusable.
    
    Parameters:
    config - configuration
    maxSize - maximum number of references to keep for each table
    tableFactory - table factory
    poolType - pool type which is one of PoolMap.PoolType.Reusable or PoolMap.PoolType.ThreadLocal
- Method Detail
  - getTable
```
public HTableInterface getTable(String tableName)
```
    Deprecated.
    
    Get a reference to the specified table from the pool.
    
    Parameters:
    tableName - table name
    
    Returns:
    a reference to the specified table
    
    Throws:
    
    RuntimeException - if there is a problem instantiating the HTable
  - getTable
```
public HTableInterface getTable(byte[] tableName)
```
    Deprecated.
    
    Get a reference to the specified table from the pool.
    Create a new one if one is not available.
    
    Parameters:
    tableName - table name
    
    Returns:
    a reference to the specified table
    
    Throws:
    
    RuntimeException - if there is a problem instantiating the HTable
  - putTable
```
public void putTable(HTableInterface table)
              throws IOException
```
    Deprecated.
    
    This method is not needed anymore, clients should call HTableInterface.close() rather than returning the tables to the pool
    
    Parameters:
    table - the proxy table user got from pool
    
    Throws:
    
    IOException
  - createHTable
```
protected HTableInterface createHTable(String tableName)
```
    Deprecated.
  - closeTablePool
```
public void closeTablePool(String tableName)
                    throws IOException
```
    Deprecated.
    
    Closes all the HTable instances , belonging to the given table, in the table pool.
    Note: this is a 'shutdown' of the given table pool and different from putTable(HTableInterface), that is used to return the table instance to the pool for future re-use.
    
    Parameters:
    tableName -
    
    Throws:
    
    IOException
  - closeTablePool
```
public void closeTablePool(byte[] tableName)
                    throws IOException
```
    Deprecated.
    
    See closeTablePool(String).
    
    Parameters:
    tableName -
    
    Throws:
    
    IOException
  - close
```
public void close()
           throws IOException
```
    Deprecated.
    
    Closes all the HTable instances , belonging to all tables in the table pool.
    Note: this is a 'shutdown' of all the table pools.
    
    Specified by:
    
    close in interface Closeable
    
    Specified by:
    
    close in interface AutoCloseable
    
    Throws:
    
    IOException
  - getCurrentPoolSize
```
public int getCurrentPoolSize(String tableName)
```
    Deprecated.

Class HTablePool

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Constructor Detail

HTablePool

HTablePool

HTablePool

HTablePool

HTablePool

Method Detail

getTable

getTable

putTable

createHTable

closeTablePool

closeTablePool

close

getCurrentPoolSize